[英]Android JSON parsing from google-shopping-api error
我決定上周要嘗試使用Google Shopping API,但是我不知道如何解析JCON對象。
經過大量搜索,我能夠獲得某件商品的產品信息! 但是,我無法縮小產品中的字符串。 因此,例如,我只想獲取產品的標題。
我有以下幾點:
jsonString:
{
"kind": "shopping#products",
"etag": "\"GKsxsRlaBDslDpMe-MT1O7wqUDE/dMvQ5Pu2C806fWZJbNJ0GjdesJs\"",
"id": "tag:google.com,2010:shopping/products",
"selfLink": "https://www.googleapis.com/shopping/search/v1/public/products?country=US&restrictBy=gtin:051500240908&startIndex=1&maxResults=25",
"totalItems": 3,
"startIndex": 1,
"itemsPerPage": 25,
"currentItemCount": 3,
"items": [
{
"kind": "shopping#product",
"id": "tag:google.com,2010:shopping/products/7585088/9884865157760252836",
"selfLink": "https://www.googleapis.com/shopping/search/v1/public/products/7585088/gid/9884865157760252836",
"product": {
"googleId": "9884865157760252836",
"author": {
"name": "Southeastern Delivery",
"accountId": "7585088"
},
"creationTime": "2011-07-25T00:15:58.000Z",
"modificationTime": "2012-02-11T09:29:00.000Z",
"country": "US",
"language": "en",
"title": "Jif Peanut Butter, Creamy",
"description": "Jif Creamy Peanut Butter. Fresh Roasted Peanut Taste. Look for the flavor seal. Contains no preservatives. No refrigeration required.",
"link": "http://www.southeasterndelivery.com/Jif_Peanut_Butter_00051500240908/",
"brand": "Jif Peanut Butter",
"condition": "new",
"gtin": "00051500240908",
"gtins": [
"00051500240908"
],
"inventories": [
{
"channel": "online",
"availability": "inStock",
"price": 15.64,
"shipping": 1.56,
"currency": "USD"
}
],
"images": [
{
"link": "http://www.southeasterndelivery.com/images/ProductImages/00051500240908.jpg"
}
]
}
},
],
"requestId": "0CLGzkcKVo64CFRDd5wod4mMAAA"
}
我的Android應用程序中有以下代碼來解析它:
try {
JSONObject jsonObject = new JSONObject(jsonString);
JSONArray itemsArray = jsonObject.getJSONArray("items");
JSONObject productObject = itemsArray.getJSONObject(0);
//String productTitle = productObject.getString("title");
//tv.setText(productTitle);
tv.setText(productObject.toString());
} catch (JSONException e) {
// TODO Auto-generated catch block
tv.setText("JSONOBJECT Error: " + e);
e.printStackTrace();
}
setContentView(tv);
現在,我的Android應用上的TextView將顯示(顯然,為了便於閱讀,我沒有縮進它):
"product": {
"googleId": "9884865157760252836",
"author": {
"name": "Southeastern Delivery",
"accountId": "7585088"
},
"creationTime": "2011-07-25T00:15:58.000Z",
"modificationTime": "2012-02-11T09:29:00.000Z",
"country": "US",
"language": "en",
"title": "Jif Peanut Butter, Creamy",
"description": "Jif Creamy Peanut Butter. Fresh Roasted Peanut Taste. Look for the flavor seal. Contains no preservatives. No refrigeration required.",
"link": "http://www.southeasterndelivery.com/Jif_Peanut_Butter_00051500240908/",
"brand": "Jif Peanut Butter",
"condition": "new",
"gtin": "00051500240908",
"gtins": [
"00051500240908"
],
"inventories": [
{
"channel": "online",
"availability": "inStock",
"price": 15.64,
"shipping": 1.56,
"currency": "USD"
}
],
"images": [
{
"link": "http://www.southeasterndelivery.com/images/ProductImages/00051500240908.jpg"
}
]
}
現在,如果您在我的Java代碼中注意到,則有兩行已注釋掉。 如果我取消注釋這些行,然后注釋該行:
tv.setText(productObject.toString());
電視被設置為以下錯誤:“ JSONOBJECT錯誤:org.json.JSONEception:標題無值”。 我不確定為什么這是真的,因為顯然它們是productObject中的標題。
任何幫助將是巨大的!
我在項目中使用json-smart 。 它很小而且非常快。 要將JSON從Sting轉換為實際對象,請使用JSONObjet json = (JSONObject)JSONValue.parse(rawString);
當您擁有JSONObject時,您將其像Map一樣對待。 所以String title = (String) json.get("title")
您在代碼中缺少一定程度的信息。 JSON數組包含的項目 ,其中包含產品 ,它有一個標題 。
您的代碼應如下所示:
JSONObject jsonObject = new JSONObject(jsonString);
JSONArray itemsArray = jsonObject.getJSONArray("items");
JSONObject itemObject = itemsArray.getJSONObject(0);
JSONObject productObject = itemObject.getJSONObject("product");
String productTitle = productObject.getString("title");
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